Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 6 125 m = _____ m (Give the answer in decimal.)
- 3 15 km = _____ m
- 5 18 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
125 m =
4100 m = 0.04 m
6 m + 0.04 m = 6.04 m
(c)
1 km = 1000 m
3 km = 3000 m
15 km =
15 x 1000 = 200 m
3
15 km
= 3000 + 200
= 3200 m
(d)
1 kg = 1000 g
5 kg = 5000 g
18 kg =
18 x 1000 = 125 g
5
18 kg
= 5000 + 125
= 5125 g
Answer(s): 65, 6.04, 3200, 5125